capacity
held across full lots
before shipping
on production runs
What Are CNC Production Runs?
CNC production runs make the same part over and over with perfect consistency. We set up dedicated fixtures and tooling to machine hundreds or thousands of identical parts. Every piece matches the first one. Volume pricing brings your cost per part way down. St. Louis teams use our production runs for consistent, repeatable CNC parts at volume pricing.
Fixture Design & Lock-In
We build custom fixtures for your part. This keeps every piece identical across the full run.
Process Locked & Verified
Toolpaths, feeds, and speeds are dialed in. The first article proves the setup works.
Batch Monitoring & QC
SPC tracks every critical dimension during the run. Final CMM reports ship with your parts.
Built for Production Teams
Your production run needs a machining partner who delivers consistent parts, on time, with full documentation.
Scalable Capacity
From 1 part to 5,000+. We scale to your quantity without sacrificing precision. Dedicated fixtures and optimized toolpaths keep every part identical.
CMM Inspection
Every critical dimension is verified before shipping. Your receiving team gets a documented inspection report — no guessing, no shortcuts.
Process Repeatability
Same material lot, same tooling, same setup. SPC monitoring tracks every critical dimension so part #5,000 is identical to part #1.
Fast Response
Upload your file and get a response fast. Production runs in 2–4 weeks. We communicate directly — no layers of sales reps between you and the shop floor.
Built for Volume. Built for Quality.
Everything you need for reliable production machining.
In St. Louis, aerospace companies drive demand for production runs. Local teams working with Boeing Defense, Space & Security and Northrop Grumman rely on consistent, repeatable batch machining with volume pricing.
St. Louis also has a strong medical device presence that drives demand for consistent, repeatable batch machining with volume pricing. Teams at Stereotaxis and MilliporeSigma (Merck KGaA) use our services for critical components. St.
In St. Louis, semiconductor companies drive demand for production runs. Local teams working with Samsung Austin Semiconductor and NXP Semiconductors rely on consistent, repeatable batch machining with volume pricing.
St. Louis also has a strong defense presence that drives demand for consistent, repeatable batch machining with volume pricing. Teams at BAE Systems and Elbit Systems of America use our services for critical components. Austin's defense ecosystem blends technology and manufacturing — BAE Systems' Austin campus builds electronic warfare and intelligence systems, Elbit Systems of America operates locally, and a grow...
1 to 5,000+ Parts
We handle runs of any size. Whether you need 10 brackets or 5,000 pins, every part gets the same precision and attention.
Any quantityDedicated Fixturing
Custom fixtures hold your parts exactly the same way every time. This keeps tolerances tight and quality consistent across the entire run.
Repeatable setupSPC Monitoring
Statistical process control tracks dimensions throughout the run. We catch drift before it becomes a problem. Your parts stay in spec from first to last.
Real-time trackingBatch Consistency
Same material lot, same tooling, same setup. We control every variable so part #5,000 is identical to part #1.
±0.001" standardKanban / JIT Delivery
We store your parts and ship in scheduled batches. You get what you need, when you need it. No warehouse required on your end.
Flexible schedulingSecondary Operations
Tapping, deburring, marking, assembly, and more. We handle the extra steps so you get finished parts ready to install.
Turnkey finishing
Production Run — 500x Connector Housings — 6061-T6
Machined for an electronics OEM requiring tight tolerances across a full 500-piece lot. Delivered in 10 business days with complete documentation and 100% lot acceptance.
across entire lot
mating interfaces
on 500-piece lot
rate
- Dimensional inspection report (CMM data included)
- Material certification & heat lot traceability
- First article inspection report approved before full run
- SPC monitoring data across full production batch
Documentation. Quality. Repeatability.
Production work demands more than good parts. Here is what you get on every order.
Full Documentation
Every order ships with everything your quality team needs.
- Dimensional inspection reports
- Material certs with heat lot traceability
- First article inspection reports
- Certificate of Conformance & PPAP
Verified Quality — CMM
We inspect before we ship. No exceptions.
- CMM inspection on every order
- NIST-traceable calibrated gauges
- ±0.001" standard, ±0.0005" critical
- Free DFM review on every upload
Process Repeatability
Locked-in setups ensure every part matches.
- Dedicated fixtures per part number
- SPC monitoring throughout production
- Same material lot across entire run
- First article approval before full batch
From CAD File to Shipped Parts
Three steps. No runaround. Built for production timelines.
Upload Your CAD File
Send your STEP or IGES file. Select material, quantity, and finish. We review for manufacturability and respond fast.
We Machine & Inspect
Your parts run on our CNC mills and lathes with dedicated fixtures. SPC monitoring and CMM inspection on every batch. We verify every critical dimension.
Ship with Full Documentation
Parts ship with dimensional inspection reports, material certs, and full traceability. Everything your quality team needs for receiving inspection.
Why St. Louis, MO Companies Choose RivCut
St. Louis (978K metro) is known for Silicon Hills tech boom. Local industries include semiconductor, EV, robotics, defense. RivCut machines parts for teams across TX from our Union City, CA facility — with standard shipping in 2–3 business days.
All parts are CNC machined in-house at our Bay Area shop. We never broker or outsource. Learn about RivCut →
Questions About Production Runs
CNC Machining Materials Available in St. Louis
Aluminum 6061 and 7075. Stainless 304, 316, and 17-4 PH. Ti-6Al-4V titanium. PEEK, Delrin, and Nylon 6/6. Every grade ships from our shop with a full mill cert.
| Aluminum | |
|---|---|
| 6061-T6 | 40 ksi yield, machinability ~190 |
| 7075-T6 | 73 ksi yield, aerospace structural |
| 2024-T3 | Fatigue resistant, airframe skins |
| 5052 | Marine-grade, formable |
| Steel | |
| 1018 | Low carbon, weldable |
| 4140 | Pre-hard 28–32 HRC, high strength |
| 4340 | Quenched & tempered, ultra-high strength |
| A36 | 36 ksi yield, structural |
| Stainless Steel | |
| 303 | Free-machining, sulfur-bearing |
| 304 | Austenitic, weldable, general purpose |
| 316 | Mo-bearing, marine and chemical grade |
| 17-4 PH | H900, ~190 ksi UTS |
| Titanium | |
| Grade 2 | CP titanium, weldable, biocompatible |
| Ti-6Al-4V (Grade 5) | 120 ksi yield, aerospace and medical |
| Brass & Copper | |
| C360 Brass | 100% machinability rating |
| C110 Copper | ~100% IACS conductivity |
| C101 Copper | Oxygen-free, ~101% IACS |
| Engineering Plastics | |
| Delrin (Acetal) | Low friction, dimensionally stable |
| PEEK | 250°C service temp, chemical resistant |
| Nylon 6/6 | Wear resistant, ~12 ksi tensile |
| UHMW | Impact resistant, low friction |
| Polycarbonate | Transparent, ~9 ksi tensile |
| PTFE (Teflon) | 260°C, chemically inert |
Don’t see your grade? Ask us — we machine 50+ alloys and polymers.
RivCut vs CNC Marketplaces vs Local Machine Shops
Why engineers in St. Louis pick RivCut over marketplaces and local machine shops. Marketplaces are fast but route your job to the lowest bidder. Local shops are trustworthy but slow on quotes and often won’t take small jobs. RivCut combines instant online quoting with the accountability of a real, in-house USA shop.
| What You Get | RivCut Best | CNC Marketplace | Local Machine Shop |
|---|---|---|---|
| Who cuts the part | Our machinists in Union City, CA | Unknown 3rd party shop | Local machinist, varies by shop |
| Country of origin | 100% USA, never outsourced | Often shipped overseas | USA, local only |
| Instant online quote | Yes — AI-priced in seconds | Yes | No — email or phone quote |
| Talk to the machinist | Yes, direct line | No, support agent only | Yes, in person |
| Free DFM review | Yes, on every order | Sometimes, paid add-on | Sometimes, informal |
| Tightest tolerance | ±0.0002 inches | ±0.005 inches typical | Varies by shop |
| Fastest lead time | 3 business days | 5–10 business days | 2–4 weeks typical |
| Minimum order | None — one part is fine | Often 5+ pieces | Often $500+ minimum |
| CMM inspection | Every order | Paid upgrade | Sometimes, manual only |
What Engineers Say About
Working With RivCut
Real reviews from real engineers. Every project matters — including yours in St. Louis.
We went through two shops before finding RivCut. Night and day difference. Parts come in right. Communication is clear. They held ±0.002" on a titanium bracket that two other shops couldn’t get right.
Aerospace PartsThey caught a tolerance issue in our drawing before production started. That saved us a full revision cycle and three weeks of delays. You don’t find that kind of attention to detail at most shops.
Medical DeviceWe needed fast turnaround on 5-axis parts for a new enclosure. RivCut delivered in 6 days. Quality was excellent. These guys move fast without cutting corners.
PrototypingThe DFM Checklist Engineers Use Before Sending CAD to a CNC Shop
14 checks for wall thickness, internal radii, tool reach, hole depth-to-diameter ratios, and tolerance stack. Catch issues before they cost you a revision cycle.
- ✓ 14-point pre-flight checklist
- ✓ Aluminum, steel & titanium-specific rules
- ✓ Printable PDF, no signup wall
Production Runs Near St. Louis
How St. Louis's Top Industries Use Production Runs
St. Louis's economy drives specific machining demand. Here's what we see from local teams.
Upload Your Production CAD File
Get a fast review for manufacturability, lead time, and production pricing from RivCut's team.
No minimums · 1 to 5,000+ parts · Volume pricing · Ships anywhere in the US